/*
 *
 * CSS written based on SMACSS architecture.
 * To learn more, visit: http://smacss.com/
 * 
 * For simplicity, no reset or normalize is added. 
 * To learn more, visit: https://css-tricks.com/reboot-resets-reasoning/
 *
*/

/* 
Smooth scrolling
https://stackoverflow.com/questions/7717527/smooth-scrolling-when-clicking-an-anchor-link
*/
/* html {
    scroll-behavior: smooth;
} */

/* ---- Base Rules ---- */
body {
    background: rgb(136, 203, 171);
    background: linear-gradient(0deg, rgba(136, 203, 171, 1) 0%, rgba(0, 13, 60, 1) 100%);
    margin: 0;
    font-family: 'Merriweather', serif;
    color: #fff;
}


/* Typeography General*/
h1 {
    font-family: 'Fira Sans', sans-serif;
    font-size: 3em;
    margin: 2em 1rem;
}

@media only screen and (min-width: 35em) {
    h1 {
        font-size: 7em;
        margin: 2em 4rem 1em;
    }
}

h2 {
    border-bottom: 1px solid #cc1;
    font-family: 'Oxygen', Sans-Serif;
    font-size: 3em;
    color: #fff;
}

p {
    line-height: 1.6em;
    color: #eee;
}

/* ---- Layout Rules ---- */
main {
    margin: 10vh 1em 10vh;
}

.main-hero {
    min-height: 40vh;
    padding-top: 3em;
}

section {
    position: relative;
    min-height: 80vh;
}

a {
    text-decoration: none;
}

/* ---- Module Rules ---- */

/* Navigation Styles*/
.navbar__menu ul {
    padding-left: 0;
    margin: 0;
    text-align: right;
}

.navbar__menu li {
    display: inline-block;
}

.navbar__menu .menu__link {
    display: block;
    padding: 1em;
    font-weight: bold;
    text-decoration: none;
    color: #000;
}

.navbar__menu .menu__link:hover {
    background: #333;
    color: #fff;
    transition: ease 0.3s all;
}

.menu_active {
    background: #333;
    color: #fff;
    transition: ease 0.3s all;
}

/* Header Styles */
.page__header {
    background: #fff;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 5;
}

/* Footer Styles */
.page__footer {
    background: #000;
    padding: 3em;
    color: #fff;
}

.page__footer p {
    color: #fff;
}


/* ---- Theme Rules ---- */
/* Landing Container Styles */
.landing__container {
    padding: 1em;
    text-align: left;
}

@media only screen and (min-width: 35em) {
    .landing__container {
        max-width: 50em;
        padding: 4em;
    }
}

section:nth-of-type(even) .landing__container {
    margin-right: 0;
    margin-left: auto;
    text-align: right;
}

/* Background Circles */
/* Note that background circles are created with psuedo elements before and after */
/* Circles appear to be random do to use of :nth-of-type psuedo class */
section:nth-of-type(odd) .landing__container::before {
    content: '';
    background: rgba(255, 255, 255, 0.187);
    position: absolute;
    z-index: -5;
    width: 20vh;
    height: 20vh;
    border-radius: 50%;
    opacity: 0;
    transition: ease 0.5s all;
}

section:nth-of-type(even) .landing__container::before {
    content: '';
    background: rgb(255, 255, 255);
    background: linear-gradient(0deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .2) 100%);
    position: absolute;
    top: 3em;
    right: 3em;
    z-index: -5;
    width: 10vh;
    height: 10vh;
    border-radius: 50%;
    opacity: 0;
    transition: ease 0.5s all;
}

section:nth-of-type(3n) .landing__container::after {
    content: '';
    background: rgb(255, 255, 255);
    background: linear-gradient(0deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .2) 100%);
    position: absolute;
    right: 0;
    bottom: 0;
    z-index: -5;
    width: 10vh;
    height: 10vh;
    border-radius: 50%;
    opacity: 0;
    transition: ease 0.5s all;
}

section:nth-of-type(3n + 1) .landing__container::after {
    content: '';
    background: rgb(255, 255, 255);
    background: linear-gradient(0deg, rgba(255, 255, 255, .1) 0%, rgba(255, 255, 255, .2) 100%);
    position: absolute;
    right: 20vw;
    bottom: -5em;
    z-index: -5;
    width: 15vh;
    height: 15vh;
    border-radius: 50%;
    opacity: 0;
    transition: ease 0.5s all;
}


/* ---- Theme State Rules ---- */
/* Section Active Styles */
/* Note: your-active-class class is applied through javascript. You should update the class here and in the index.html to what you set in your javascript file.  */
section.your-active-class {
    background: rgb(0, 0, 0);
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0) 100%);
}

section.your-active-class .landing__container::before {
    opacity: 1;
    animation: rotate 4s linear 0s infinite forwards;
}

section.your-active-class .landing__container::after {
    opacity: 1;
    animation: rotate 5s linear 0s infinite forwards reverse;
}

/* Section Active Styles Keyframe Animations */
@keyframes rotate {
    from {
        transform: rotate(0deg) translate(-1em) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translate(-1em) rotate(-360deg);
    }
}

/* scroll button */
#button {
    display: inline-block;
    background-color: #FF9800;
    width: 50px;
    height: 50px;
    text-align: center;
    border-radius: 4px;
    position: fixed;
    bottom: 30px;
    right: 30px;
    transition: background-color .3s,
        opacity .5s, visibility .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

#button::after {
    content: "\f077";
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff;
}

#button:hover {
    cursor: pointer;
    background-color: #333;
}

#button:active {
    background-color: #555;
}

#button.show {
    opacity: 1;
    visibility: visible;
}

/* */
.hide-nav {
    display: none;
    opacity: 0;
    transition: visibility 0s, opacity 1s linear;
}

.show-nav {
    opacity: 1;
    display: flex;
    visibility: visible;
}